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Finding the Fourth Proportional to 5,493.49, 7,579.70 and 3,103.51

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Solution

The fourth proportional to 5,493.49, 7,579.70 and 3,103.51 is: 4,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,493.49 : 7,579.70 = 3,103.51 : x
  2. Step 2: Convert to fraction form
    5,493.49/7,579.70 = 3,103.51/x
  3. Step 3: Cross multiply
    5,493.49x = 7,579.70 × 3,103.51
  4. Step 4: Simplify right side
    5,493.49x = 23,523,674.75
  5. Step 5: Solve for x
    x = 23,523,674.75/5,493.49
  6. Step 6: Final answer
    x = 4,282.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.